Ever since Precious Perez was a child, she has loved to sing. Born and raised outside Boston, her family joked that she'd eventually study at Berklee College of Music. But when a high school music teacher advocated for Precious's talent, her dream became a reality. Precious was born two-and-a-half months premature and weighed just one pound. Her eyes did not develop fully, and she is blind. Growing up, most people focused on what Precious...